An organization is deploying compact sensor units that collect sensitive data and operate with limited physical monitoring. Which measure helps protect their operational software if someone gains direct access to the hardware?
Keep operational data unprotected in accessible memory
Perform cryptographic validation of the firmware before it starts
Enable unrestricted remote debugging on the device
Disable hardware-based security settings for easier upkeep
Cryptographic firmware validation, often part of secure boot mechanisms, ensures that only trusted code runs on a device. This prevents malicious firmware replacement or modification, which is especially critical when physical access is possible. In contrast, weakening hardware security or enabling debugging increases risk, and leaving data unencrypted in memory provides no defense.
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